established ourselves, at the beginning, in a place the most favorable for the exploration of the and sub bed. have made collection from 8 or 10 different levels. As previously stated, I judge that our collection is of as great interest as any that has been made in the Basin. It is undoubtedly more complete then any other. The Carnegie Museum has now as good a colelction of Upper Eocene mammals and reptiles as any museum; and to her rich and coleections she has added from at least two stages of the I have felt hat now is the time to collect form these beds which have yielded vertebrate fossils nowhere else in the United States in the world. As we have had continuous success we have " right at it with the exception of two or three short side trips, which have all been successful. There is work in view